4 papers · 1 filter
Density Fluctuation Mediated Superconductivity
P. Monthoux, G. G. Lonzarich
We conpare predictions of the mean-field theory of supercnductivity for metallic systems on the border of a density instability for cubic and tetragonal lattices. The calculations…
Diagrammatic perturbation theory and the pseudogap
P. Monthoux
We study a model of quasiparticles on a two-dimensional square lattice coupled to Gaussian distributed dynamical fields. The model describes quasiparticles coupled to spin or charg…
Field-induced Antiferromagnetism and the Kondo Insulator-to-Metal Transition
K. S. D. Beach, Patrick A. Lee, P. Monthoux
The Kondo lattice model, augmented by a Zeeman term, serves as a useful model of a Kondo insulator in an applied magnetic field. A variational mean field analysis of this system on…
On Migdal's theorem and the pseudogap
P. Monthoux
We study a model of quasiparticles on a two-dimensional square lattice coupled to Gaussian distributed dynamical molecular fields. The model describes quasiparticles coupled to spi…